﻿#region Copyright
// 
// DotNetNuke® - http://www.dotnetnuke.com
// Copyright (c) 2002-2012
// by DotNetNuke Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
#endregion
#region Usings

using System;
using System.Globalization;

using DotNetNuke.Services.Exceptions;
using DotNetNuke.UI.Modules;
using DotNetNuke.UI.Skins.Controls;

using WebFormsMvp.Web;


#endregion

namespace DotNetNuke.Web.Mvp
{
    public abstract class ModuleViewBase : ModuleUserControlBase, IModuleViewBase
    {
        #region Constructors

        protected ModuleViewBase()
        {
            AutoDataBind = true;
        }

        #endregion

        #region Protected Methods

        protected T DataItem<T>() where T : class, new()
        {
            var _T = Page.GetDataItem() as T ?? new T();
            return _T;
        }

        protected T DataValue<T>()
        {
            return (T) Page.GetDataItem();
        }

        protected string DataValue<T>(string format)
        {
            return string.Format(CultureInfo.CurrentCulture, format, DataValue<T>());
        }

        protected override void OnInit(EventArgs e)
        {
            PageViewHost.Register(this, Context, false);

            base.OnInit(e);

            Page.InitComplete += PageInitComplete;
            Page.PreRenderComplete += PagePreRenderComplete;
            Page.Load += PageLoad;
        }

        #endregion

        #region IModuleView(Of TModel) Implementation

        public bool AutoDataBind { get; set; }

        public event EventHandler Initialize;

        public void ProcessModuleLoadException(Exception ex)
        {
            Exceptions.ProcessModuleLoadException(this, ex);
        }

        public void ShowMessage(string messageHeader, string message, ModuleMessage.ModuleMessageType messageType)
        {
            DotNetNuke.UI.Skins.Skin.AddModuleMessage(this, messageHeader, message, messageType);
        }

        #endregion

        #region IView(Of TModel) Implementation

        public new event EventHandler Load;

        public bool ThrowExceptionIfNoPresenterBound
        {
            get { return true; }
        }

        #endregion

        #region Event Handlers

        private void PageInitComplete(object sender, EventArgs e)
        {
            if (Initialize != null)
            {
                Initialize(this, EventArgs.Empty);
            }
        }

        private void PageLoad(object sender, EventArgs e)
        {
            if (Load != null)
            {
                Load(this, e);
            }
        }

        private void PagePreRenderComplete(object sender, EventArgs e)
        {
            //This event is raised after any async page tasks have completed, so it
            //is safe to data-bind
            if ((AutoDataBind))
            {
                DataBind();
            }
        }

        #endregion
    }
}
